mm: numa: Rate limit the amount of memory that is migrated between nodes

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NOTE: This is very heavily based on similar logic in autonuma. It should
	be signed off by Andrea but because there was no standalone
	patch and it's sufficiently different from what he did that
	the signed-off is omitted. Will be added back if requested.

If a large number of pages are misplaced then the memory bus can be
saturated just migrating pages between nodes. This patch rate-limits
the amount of memory that can be migrating between nodes.

Signed-off-by: Mel Gorman <mgorman@suse.de>

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Mel Gorman 2012-11-14 21:41:46 +00:00

parent 8177a420ed

commit a8f6077213

1 changed files with 29 additions and 1 deletions

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mm/migrate.c

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